What kind of diode is this?

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imloggedin

Well-known member
Joined
Dec 17, 2005
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265
Location
mid-usa
So my MOTU 828 MK2 just started smoking when I turned it on today. I popped it open and it looks like an SMD diode went up in smoke. I don't see anything else wrong. I want to replace it but I have no idea what brand or specs it is. I have attached a picture of it to this post. It looks like a MELF diode with a blue band. I am not even sure how this happened, but I'd much rather replace it than spend $99 to get it refurbished. Can anyone recommend a replacement part?

Thanks
 

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looks like a power supply diode for a bridge circuit,

you can use a regular 1N4004 to 1N4007 diode with leads,

just snip the leads and solder them to the board,

however, this might no fix the board if there is a short somewhere,

usually a blown diode is a symptom and not the cause,

you might get lucky,

look for a shorted out cap, it can be discolored also, or not.

use your ohm machine to check all the caps before replacing the diode,

might want to change all the diodes since they are about 15 cents a piece,

be careful not to lift any PCB pads with excess heat,

hit and git as they say, put a puddle down on the pad,

then reheat and drop in the part,
 

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